Universal Decimal Classification Online

UDC Online

The UDC Online is the Complete Edition of UDC with additional functionality. Originally intended for organizing documentation on everything that had ever been written, UDC has exceeded its parent, the Dewey Decimal Classification, both in the size of its vocabulary and its indexing capabilities.

It was produced and researched in association and with representation from the following industry experts:

  • CILIP (Chartered Institution of Library and Information Professionals)
  • National Information Services and Systems (NISS)
  • Society of Indexers
  • Standing Conference of National and University Libraries.

Derived from the Master Reference File (MRF) from the UDC Consortium, UDC Online contains all available references and classification and has over 65,000 entries.

UDC Online has been given a complete overhaul by BSI and is now owned and run by us.

Subscribe to UDC Online now!

Price: £395* + VAT

£50** + VAT p.a. for each additional user

*This price entitles one user (1-2 users /1 site) to unlimited use of BSI  UDC Online for one year to be used to assess the subscribing organization only.

** For multi-user and enterprise pricing contact our dedicated sales team on +44 (0) 20 8996 7555

To order online please go to www.UDConline.net click on the "subscribe now" button and subscribe directly using your cred/debit card.

Register to receive a two week free trial

UDC online - free trial

Free trial of UDC online

For the trial please fill out our online enquiry form or contact our UDC Customer Services department on +44 (0)20 8996 7555, email udc@bsigroup.com


UDC Guidance book available

The Universal Decimal Classification. A guide to its useDownload a chapter for free.

UDC online - free trial